...
首页> 外文期刊>Physical review >Structural phase transformation through defect cluster growth in Gd-doped ceria
【24h】

Structural phase transformation through defect cluster growth in Gd-doped ceria

机译:掺G二氧化铈中缺陷簇生长引起的结构相变

获取原文
获取原文并翻译 | 示例
           

摘要

Defect clusters with ordered structures in Gd-doped ceria have been verified by transmission electron microscopy. Atomistic simulation validates further the ordered structures and related pathway for cluster growth. A unique dumbbell structure formed with six oxygen vacancies in a ceria matrix has been identified as the building block for defect cluster growth and sequentially for the evolution from a F- to C-type lattice. As such, the phase transformation as established on the atomic scale occurs through this defect cluster growth.
机译:掺杂Gd的二氧化铈中具有有序结构的缺陷簇已经通过透射电子显微镜证实。原子模拟进一步验证了簇生长的有序结构和相关途径。在二氧化铈基质中由六个氧空位形成的独特哑铃结构已被确定为缺陷簇生长以及随后从F型晶格演变为C型晶格的基础。这样,通过这种缺陷簇的生长发生在原子尺度上建立的相变。

著录项

  • 来源
    《Physical review》 |2011年第18期|p.180201.1-180201.5|共5页
  • 作者单位

    Global Research Center for Environment and Energy based on Nanomaterials Science, National Institute for Materials Science,Tsukuba, Ibaraki 305-0044, Japan,Department of Physics and Astronomy, University of North Carolin Chapel Hill, NC 27599-3255;

    Global Research Center for Environment and Energy based on Nanomaterials Science, National Institute for Materials Science,Tsukuba, Ibaraki 305-0044, Japan;

    Key Laboratory of Materials Modification, School of Materials Science and Engineering, Dalian University of Technology,2 Linggong Road, Dalian, Liaoning 116024, People's Republic of China;

    Laboratory of Fuel Cells, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian,Liaoning 116023, People's Republic of China;

    Division of Materials, The University of Queensland, St. Lucia, Brisbane, Queensland 4072, Australia,Centre for Microscopy and Microanalysis, The University of Queensland, St. Lucia, Brisbane, Queensland 4072, Australia;

    Centre for Microscopy and Microanalysis, The University of Queensland, St. Lucia, Brisbane, Queensland 4072, Australia;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    constant-composition solid-solid phase transformations: olymorphic, massive, and order-disorder; structural modeling: serial-addition models, computer simulation; transmission electron microscopy (TEM) (including STEM, HRTEM, etc.);

    机译:恒组成固固相变:同晶;块状和有序无序;结构建模:串行添加模型;计算机仿真;透射电子显微镜(TEM)(包括STEM;HRTEM等);

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号